Agreement has become widespread that students' peer-to-peer argumentation should play a central role in science classrooms. Coordinating evidence with claims lies at the heart of a skilled argument. Yet evidence takes numerous forms that pose different interpretational challenges. Might cognitive limitations on the part of the individual student…

The construct of metacognition appears in an ever increasing number and range of contexts in educational, developmental, and cognitive psychology. Can it retain its status as a useful construct in the face of such diverse application? Or is it merely an umbrella term for diverse mental phenomena that are loosely if at all connected? Here I argue…

We examine how extended engagement in argumentation with peers leads to enhanced metalevel understanding of argumentive discourse. Following such engagement, young adolescents demonstrated enhanced understanding of counterargument and use of evidence as objectives of skilled argumentation, relative to a nonparticipating comparison group. Among the…

Outlines a developmental model of critical thinking that is derived from contemporary research on directions and processes of intellectual development in children and adolescents. Identifies metacognitive, metastrategic, and epistemological forms of second-order cognition that enter into critical thinking. (Author/SLD)